JP2022129341A - Thermal-insulating surface structure for seat of automobile or motorcycle - Google Patents

Thermal-insulating surface structure for seat of automobile or motorcycle Download PDF

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JP2022129341A
JP2022129341A JP2021088451A JP2021088451A JP2022129341A JP 2022129341 A JP2022129341 A JP 2022129341A JP 2021088451 A JP2021088451 A JP 2021088451A JP 2021088451 A JP2021088451 A JP 2021088451A JP 2022129341 A JP2022129341 A JP 2022129341A
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polyvinyl chloride
resin composition
chloride resin
layer
automobile
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▲徳▼超 廖
Te-Chao Liao
俊哲 曹
Chun-Che Tsao
世勳 顏
Shih-Hsun Yen
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Nan Ya Plastics Corp
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Nan Ya Plastics Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
    • B62J1/18—Covers for saddles or other seats; Paddings
    • C—CHEMISTRY; METALLURGY
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    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
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    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
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    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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    • C08K5/56—Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract

To provide a thermal-insulating surface structure for a seat of an automobile or a motorcycle.SOLUTION: A thermal-insulating surface structure includes a host layer that is formed from a polyvinyl chloride resin composition. The polyvinyl chloride resin composition includes polyvinyl chloride and a metal complex. With the total weight of the polyvinyl chloride resin composition being 100 wt.%, the content of the metal complex ranges from 3 wt.% to 20 wt.%.SELECTED DRAWING: Figure 5

Description

本発明は、表面断熱構造に関し、特に、自動車・オートバイのシートに用いる表面断熱構造に関する。 TECHNICAL FIELD The present invention relates to a surface insulation structure, and more particularly to a surface insulation structure used for seats of automobiles and motorcycles.

従来の自動車・オートバイのシートの表面に用いる人工皮革は、ポリ塩化ビニル（ｐｏｌｙｖｉｎｙｌ ｃｈｌｏｒｉｄｅ）及びカーボンブラックを主成分にして製造されたものである。ポリ塩化ビニルは、可塑剤の添加により柔軟且つ弾性を有し、広い分野に用いられる。カーボンブラックは、周知の黒色顔料であり、人工皮革を暗色や黒色にすることが可能である。ただし、それを長時間日光にさらすと、カーボンブラックは、人工皮革の表面温度が高いままとなるように、熱エネルギーを吸収する。 Conventional artificial leather used for the surfaces of seats of automobiles and motorcycles is made mainly of polyvinyl chloride and carbon black. Polyvinyl chloride has flexibility and elasticity due to the addition of a plasticizer, and is used in a wide range of fields. Carbon black is a well-known black pigment that can darken or blacken artificial leather. However, when it is exposed to sunlight for a long time, the carbon black absorbs heat energy so that the surface temperature of the artificial leather remains high.

特に夏のときに、自動車・オートバイのシートが直接に日光に晒すと、人工皮革の表面は、７５～８０℃といった高い温度に達することが多いので、使用者の不調若しくはやけどを起こしやすい。故に、従来の人工皮革を日光にさらすことによる温度上昇で起こした問題について、未だ改良する余地がある。 Especially in the summer, when the seats of automobiles and motorcycles are directly exposed to the sun, the surface of the artificial leather often reaches a high temperature of 75-80°C, which easily causes discomfort or burns to the user. Therefore, there is still room for improvement regarding the problem caused by the temperature rise caused by exposing the conventional artificial leather to sunlight.

本発明が解決しようとする技術の課題は、従来技術の不足に対し、自動車・オートバイのシートに用いる表面断熱構造を提供する。 The technical problem to be solved by the present invention is to provide a surface insulation structure for automobile and motorcycle seats to meet the deficiencies of the prior art.

上記の技術的課題を解決するために、本発明が採用する一つの技術的手段は、自動車・オートバイのシートに用いる表面断熱構造を提供することである。自動車・オートバイのシートに用いる表面断熱構造は、ポリ塩化ビニル樹脂組成物で形成されたホスト層を備え、ポリ塩化ビニル樹脂組成物は、ポリ塩化ビニルと金属錯体とを含有し、ポリ塩化ビニル樹脂組成物の総重量を１００重量％として、金属錯体の含有量は、３～２０重量％である。 In order to solve the above technical problems, one technical means adopted by the present invention is to provide a surface heat insulating structure for use in the seats of automobiles and motorcycles. A surface heat insulating structure used for seats for automobiles and motorcycles includes a host layer formed of a polyvinyl chloride resin composition, the polyvinyl chloride resin composition containing polyvinyl chloride and a metal complex, and comprising a polyvinyl chloride resin. Taking the total weight of the composition as 100% by weight, the content of the metal complex is 3-20% by weight.

本発明の一つの実施形態において、金属錯体の中心原子は、マンガン、鉄、コバルト、バナジウム、及びそれらの組み合わせからなる群から選択される。 In one embodiment of the invention, the central atom of the metal complex is selected from the group consisting of manganese, iron, cobalt, vanadium, and combinations thereof.

本発明の一つの実施形態において、ポリ塩化ビニル樹脂組成物は、多孔質材料をさらに含み、ポリ塩化ビニル樹脂組成物の総重量を１００重量％として、多孔質材料の含有量は、１～１０重量％である。 In one embodiment of the present invention, the polyvinyl chloride resin composition further comprises a porous material. % by weight.

本発明の一つの実施形態において、多孔質材料は、エアロゲル（ａｅｒｏｇｅｌ）、中空発泡粒子、珪藻石、及びそれらの組み合わせからなる群から選択される。 In one embodiment of the invention, the porous material is selected from the group consisting of aerogels, hollow expanded particles, diatomite, and combinations thereof.

本発明の一つの実施形態において、自動車・オートバイのシートに用いる表面断熱構造は、ホスト層の一つの表面に設置された白色反射層をさらに含み、白色反射層は、二酸化チタン、硫酸バリウム、炭酸カルシウム、酸化マグネシウム、硫化亜鉛、フッ化カルシウム、フッ化リチウム、フッ化ナトリウム、フッ化カリウム、リトポン、炭酸マグネシウム、チタン酸バリウム、鉄酸バリウム、又はそれらの組み合わせを含む。 In one embodiment of the present invention, the surface insulation structure for automobile/motorcycle seat further comprises a white reflective layer disposed on one surface of the host layer, wherein the white reflective layer comprises titanium dioxide, barium sulfate, carbonic acid. Calcium, magnesium oxide, zinc sulfide, calcium fluoride, lithium fluoride, sodium fluoride, potassium fluoride, lithopone, magnesium carbonate, barium titanate, barium ferrate, or combinations thereof.

本発明の一つの実施形態において、ポリ塩化ビニル樹脂組成物は、第一ポリ塩化ビニル樹脂組成物及び第二ポリ塩化ビニル樹脂組成物を含み、ホスト層は、ゴム層及び冷却層を含む。ゴム層は、ポリ塩化ビニルと金属錯体とを含有する第一ポリ塩化ビニル樹脂組成物で形成される。冷却層は、ゴム層に設置されており、ポリ塩化ビニルと多孔質材料とを含有する第二ポリ塩化ビニル樹脂組成物で形成される。 In one embodiment of the invention, the polyvinyl chloride resin composition comprises a first polyvinyl chloride resin composition and a second polyvinyl chloride resin composition, and the host layer comprises a rubber layer and a cooling layer. The rubber layer is formed of a first polyvinyl chloride resin composition containing polyvinyl chloride and a metal complex. The cooling layer is placed on the rubber layer and is formed of a second polyvinyl chloride resin composition containing polyvinyl chloride and a porous material.

本発明の一つの実施形態において、多孔質材料は、エアロゲル、中空発泡粒子、珪藻石、及びそれらの組み合わせからなる群から選択される。 In one embodiment of the invention, the porous material is selected from the group consisting of aerogels, hollow expanded particles, diatomite, and combinations thereof.

本発明の一つの実施形態において、ポリ塩化ビニル樹脂組成物は、第一ポリ塩化ビニル樹脂組成物及び第二ポリ塩化ビニル樹脂組成物を含み、ホスト層は、ゴム層及び冷却層を含む。ゴム層は、ポリ塩化ビニルと金属錯体とを含有する第一ポリ塩化ビニル樹脂組成物で形成される。冷却層は、ゴム層に設置されており、ポリ塩化ビニルと熱伝導材料とを含有する第二ポリ塩化ビニル樹脂組成物で形成される。 In one embodiment of the invention, the polyvinyl chloride resin composition comprises a first polyvinyl chloride resin composition and a second polyvinyl chloride resin composition, and the host layer comprises a rubber layer and a cooling layer. The rubber layer is formed of a first polyvinyl chloride resin composition containing polyvinyl chloride and a metal complex. The cooling layer is placed on the rubber layer and is formed of a second polyvinyl chloride resin composition containing polyvinyl chloride and a thermally conductive material.

本発明の一つの実施形態において、前記熱伝導材料は、グラファイト、酸化アルミニウム、酸化マグネシウム、酸化亜鉛、窒化アルミニウム、窒化ホウ素、炭化ケイ素、及びそれらの組み合わせからなる群から選択される。 In one embodiment of the invention, the thermally conductive material is selected from the group consisting of graphite, aluminum oxide, magnesium oxide, zinc oxide, aluminum nitride, boron nitride, silicon carbide, and combinations thereof.

本発明の一つの実施形態において、自動車・オートバイのシートに用いる表面断熱構造は、ゴム層と冷却層との間に設置された白色反射層をさらに含み、白色反射層は、二酸化チタン、硫酸バリウム、炭酸カルシウム、酸化マグネシウム、硫化亜鉛、フッ化カルシウム、フッ化リチウム、フッ化ナトリウム、フッ化カリウム、リトポン、炭酸マグネシウム、チタン酸バリウム、鉄酸バリウム、又はそれらの組み合わせを含む。 In one embodiment of the present invention, the surface insulation structure for automobile/motorcycle seat further comprises a white reflective layer placed between the rubber layer and the cooling layer, wherein the white reflective layer comprises titanium dioxide, barium sulfate , calcium carbonate, magnesium oxide, zinc sulfide, calcium fluoride, lithium fluoride, sodium fluoride, potassium fluoride, lithopone, magnesium carbonate, barium titanate, barium ferrate, or combinations thereof.

本発明の一つの実施形態において、冷却層の厚さは、ゴム層の厚さの０．５～２倍である。 In one embodiment of the invention, the thickness of the cooling layer is 0.5-2 times the thickness of the rubber layer.

本発明の有利な効果として、本発明に係る自動車・オートバイのシートに用いる表面断熱構造は、「前記ポリ塩化ビニル樹脂組成物は、ポリ塩化ビニルと金属錯体とを含有する」こと、及び「前記ポリ塩化ビニル樹脂組成物の総重量を１００重量％として、前記金属錯体の含有量は、３～２０重量％である」といった技術特徴により、表面断熱構造の断熱効果を向上させることができる。 As an advantageous effect of the present invention, the surface heat insulating structure used for the seat for automobiles and motorcycles according to the present invention is characterized in that "the polyvinyl chloride resin composition contains polyvinyl chloride and a metal complex" and "the above Assuming that the total weight of the polyvinyl chloride resin composition is 100 wt %, the content of the metal complex is 3 to 20 wt %.

オートバイシートの立体模式図である。It is a three-dimensional schematic diagram of a motorcycle seat. 本発明の第一実施形態に係る表面断熱構造の側面模式図である。It is a side schematic diagram of the surface heat insulation structure which concerns on 1st embodiment of this invention. 本発明の第二実施形態に係る表面断熱構造の側面模式図である。It is a side schematic diagram of the surface heat insulation structure which concerns on 2nd embodiment of this invention. 本発明の第三実施形態に係る表面断熱構造の側面模式図である。It is a side view schematic diagram of the surface heat insulation structure which concerns on 3rd embodiment of this invention. 本発明の第四実施形態に係る表面断熱構造の側面模式図である。It is a side view schematic diagram of the surface heat insulation structure which concerns on 4th embodiment of this invention.

本発明の特徴及び技術内容がより一層分かるように、以下の本発明に関する詳細な説明と添付図面を参照されたい。しかし、提供される添付図面は参考と説明のために提供するものに過ぎず、本発明の請求の範囲を制限するためのものではない。 For a better understanding of the features and technical content of the present invention, please refer to the following detailed description of the present invention and the accompanying drawings. However, the accompanying drawings provided are provided for reference and explanation only, and are not intended to limit the scope of the claims of the present invention.

以下、所定の具体的な実施態様によって「本発明に係る自動車・オートバイのシートに用いる表面断熱構造」を説明し、当業者は、本明細書に開示された内容に基づいて本発明の利点と効果を理解することができる。本発明は、他の異なる具体的な実施態様によって実行または適用でき、本明細書における各細部についても、異なる観点と用途に基づいて、本発明の構想から逸脱しない限り、各種の修正と変更を行うことができる。また、事前に説明するように、本発明の添付図面は、簡単な模式的説明であり、実際のサイズに基づいて描かれたものではない。以下の実施形態に基づいて本発明に係る技術内容を更に詳細に説明するが、開示される内容によって本発明の保護範囲を制限することはない。また、本明細書において使用される「または」という用語は、実際の状況に応じて、関連して挙げられる項目におけるいずれか１つまたは複数の組み合わせを含むことがある。 Hereinafter, the "surface heat insulation structure for use in automobile/motorcycle seats according to the present invention" will be described according to certain specific embodiments, and those skilled in the art will appreciate the advantages and benefits of the present invention based on the content disclosed herein. I can understand the effect. The present invention can be carried out or applied by other different specific embodiments, and each detail herein can be modified and changed in various ways based on different viewpoints and applications without departing from the concept of the invention. It can be carried out. Also, as previously stated, the accompanying drawings of the present invention are merely schematic representations and are not drawn to scale. The technical content of the present invention will be described in more detail based on the following embodiments, but the disclosed content does not limit the scope of protection of the present invention. Also, as used herein, the term "or" may include any one or more combinations of the associated listed items, depending on the actual situation.

図１に示すように、本発明は、自動車・オートバイのシートに用いる表面断熱構造を提供する。表面断熱構造は、一部の赤外線及び可視光を反射することができるので、日差しの下であっても、表面断熱構造の表面温度は、５５℃を超えることはない。具体的に、本発明に係る表面断熱構造の全光線反射率（ＴＳＲ％）は、４０％以下であり、且つ、表面断熱構造の赤外線カット率（ＩＲ－ｃｕｔ％）は２０％以上である。 DETAILED DESCRIPTION OF THE INVENTION As shown in FIG. 1, the present invention provides a surface insulation structure for automotive and motorcycle seats. Since the surface insulation structure can reflect some infrared and visible light, even under the sunshine, the surface temperature of the surface insulation structure does not exceed 55°C. Specifically, the total light reflectance (TSR%) of the surface heat insulating structure according to the present invention is 40% or less, and the infrared cut rate (IR-cut%) of the surface heat insulating structure is 20% or more.

［第一実施形態］
図２に示すように、本発明の第一実施形態に係る表面断熱構造Ｚは、ポリ塩化ビニル樹脂組成物で形成されたホスト層１を備える。ポリ塩化ビニル樹脂組成物は、ポリ塩化ビニルと金属錯体（ｍｅｔａｌ ｃｏｍｐｌｅｘ）とを含有する。 [First embodiment]
As shown in FIG. 2, the surface heat insulating structure Z according to the first embodiment of the present invention comprises a host layer 1 made of a polyvinyl chloride resin composition. A polyvinyl chloride resin composition contains polyvinyl chloride and a metal complex.

本実施形態において、ポリ塩化ビニル樹脂組成物は、ポリ塩化ビニルを主成分とする樹脂組成物であり、ポリ塩化ビニル樹脂組成物の総重量を１００重量％として、ポリ塩化ビニルの含有量は、６０～９０重量％である。金属錯体の中心原子は、マンガン、鉄、コバルト、バナジウム、またはそれらの組み合わせであり、例えば、品番Ｆ６３３１（米国Ｆｅｒｒｏ社）、ＳＧ－１０３（日本ＩＳＫ社）、ＳＧ－１０１（日本ＩＳＫ社）、４２－７０７Ａ（日本ＴＯＭＡＴＥＣ社）及び４２－７１４Ａ（日本ＴＯＭＡＴＥＣ社）の金属錯体が挙げられる。 In the present embodiment, the polyvinyl chloride resin composition is a resin composition containing polyvinyl chloride as a main component, and the total weight of the polyvinyl chloride resin composition is 100% by weight. 60 to 90% by weight. The central atom of the metal complex is manganese, iron, cobalt, vanadium, or a combination thereof. 42-707A (Japan TOMATEC) and 42-714A (Japan TOMATEC) metal complexes.

それ以外に、ポリ塩化ビニル樹脂組成物は、他の樹脂成分をさらに含んでもよく、例えば、アクリル樹脂、アルキド樹脂、ポリエステル樹脂、ポリウレタン樹脂、エポキシ樹脂、フェノール樹脂、メラミン樹脂、アミノ樹脂、塩化ビニル樹脂、またはそれらの組み合わせが挙げられる。 In addition, the polyvinyl chloride resin composition may further contain other resin components, such as acrylic resins, alkyd resins, polyester resins, polyurethane resins, epoxy resins, phenolic resins, melamine resins, amino resins, vinyl chloride resins. resins, or combinations thereof.

本発明における金属錯体は、暗い顔料及び反射型充填材の両方の役割を果たす。具体的に、マンガン、鉄、コバルト、またはバナジウムを含む金属錯体を添加することにより、ホスト層１を暗色や黒色にすることができ、このように、表面断熱構造Ｚを、市販の自動車・オートバイのシートの表面に用いる人工皮革と類似する外観にすることができる。また、金属錯体は、赤外線を反射することで、日光曝露後のホスト層１が高温（７５～８０℃）までに上昇することを回避することができる。 The metal complexes in the present invention act as both dark pigments and reflective fillers. Specifically, by adding a metal complex containing manganese, iron, cobalt, or vanadium, the host layer 1 can be made dark or black. The appearance can be similar to that of the artificial leather used for the surface of the sheet. In addition, the metal complex can prevent the temperature of the host layer 1 from rising to a high temperature (75 to 80° C.) after exposure to sunlight by reflecting infrared rays.

本発明の一つの実施形態において、ポリ塩化ビニル樹脂組成物の総重量を１００重量％として、金属錯体の含有量は、３～２０重量％であり、それによって、表面断熱構造Ｚは、良好な赤外線反射効果を有すると共に、表面断熱構造Ｚの製造コストを効果的に制御することができる。金属錯体の含有量は２０重量％を超えると、赤外線の反射効果を向上させることができるが、反射効果が境界値に近いためコスト的に不利である。 In one embodiment of the present invention, the total weight of the polyvinyl chloride resin composition is 100% by weight, and the content of the metal complex is 3 to 20% by weight, so that the surface heat insulating structure Z has a good It has an infrared reflective effect and can effectively control the manufacturing cost of the surface heat insulating structure Z. When the content of the metal complex exceeds 20% by weight, the infrared reflective effect can be improved, but the reflective effect is close to the boundary value, which is disadvantageous in terms of cost.

ポリ塩化ビニル樹脂組成物は、多孔質材料をさらに含んでもよく、多孔質材料の内部にガスが含まれ、一般的には、ガスの熱伝導率は固体の熱伝導率より低いので、多孔質材料の添加により、熱伝導を遮る効果を果たせる。例えば、多孔質材料は、エアロゲル（ａｅｒｏｇｅｌ）、中空発泡粒子、及び珪藻石からなる群から選択されることができるが、これに制限されるものではない。多孔質材料を添加した後に、ホスト層１の密度は、０．５～１．２ｇ／ｃｍ３である。 The polyvinyl chloride resin composition may further comprise a porous material, and gas is contained inside the porous material. The addition of materials can have the effect of blocking heat conduction. For example, the porous material can be selected from the group consisting of aerogels, hollow foamed particles, and diatomite, but is not limited thereto. After adding the porous material, the density of the host layer 1 is 0.5-1.2 g/cm 3 .

本発明の一つの実施形態において、ポリ塩化ビニル樹脂組成物の総重量を１００重量％として、多孔質材料の含有量は、１～１０重量％であり、それによって、表面断熱構造Ｚは、良好な断熱効果を発揮することができる。多孔質材料の含有量は１０重量％を超えると、表面断熱構造Ｚの伸び性及び構造強度に悪影響を与える。 In one embodiment of the present invention, the total weight of the polyvinyl chloride resin composition is 100% by weight, and the content of the porous material is 1 to 10% by weight, so that the surface insulation structure Z is good good heat insulation effect. If the content of the porous material exceeds 10% by weight, the extensibility and structural strength of the surface heat insulating structure Z are adversely affected.

それ以外に、ポリ塩化ビニル樹脂組成物は、熱伝導性材料をさらに含んでもよく、熱伝導性材料の添加により、ポリ塩化ビニル樹脂組成物の熱伝導性を向上させ、エネルギーの伝送効果を果たせる。例えば、熱伝導材料は、グラファイト、酸化アルミニウム、酸化マグネシウム、酸化亜鉛、窒化アルミニウム、窒化ホウ素、炭化ケイ素、及びそれらの組み合わせからなる群から選択される。 In addition, the polyvinyl chloride resin composition may further include a thermally conductive material. By adding the thermally conductive material, the thermal conductivity of the polyvinyl chloride resin composition can be improved and the energy transmission effect can be achieved. . For example, the thermally conductive material is selected from the group consisting of graphite, aluminum oxide, magnesium oxide, zinc oxide, aluminum nitride, boron nitride, silicon carbide, and combinations thereof.

本発明の一つの実施形態において、ポリ塩化ビニル樹脂組成物の総重量を１００重量％として、熱伝導性材料の含有量は、１～６０重量％であり、それによって、表面断熱構造Ｚは、良好な断熱効果を発揮することができる。熱伝導性材料の含有量は６０重量％を超えると、表面断熱構造Ｚの伸び性及び構造強度に悪影響を与える。 In one embodiment of the present invention, the total weight of the polyvinyl chloride resin composition is 100% by weight, and the content of the thermally conductive material is 1 to 60% by weight, whereby the surface insulation structure Z is Good heat insulation effect can be exhibited. If the content of the thermally conductive material exceeds 60% by weight, the extensibility and structural strength of the surface insulation structure Z are adversely affected.

本発明の一つの実施形態において、ポリ塩化ビニル樹脂組成物は、発泡材料であってもよく、即ち、ポリ塩化ビニル樹脂組成物は、物理発泡剤または化学発泡剤を含むことにより、ホスト層１を発泡層にしてもよい。また、発泡剤（物理発泡剤及び／または化学発泡剤）は、多孔質材料と共にポリ塩化ビニル樹脂組成物に含まれてもよい。 In one embodiment of the present invention, the polyvinyl chloride resin composition may be a foaming material, that is, the polyvinyl chloride resin composition contains a physical foaming agent or a chemical foaming agent so that the host layer 1 may be used as a foam layer. A blowing agent (physical blowing agent and/or chemical blowing agent) may also be included in the polyvinyl chloride resin composition along with the porous material.

第一実施形態において、表面断熱構造Ｚの全光線反射率（ＴＳＲ％）は、４０％以下であり、且つ、表面断熱構造Ｚの赤外線カット率（ＩＲ－ｃｕｔ％）は２０％以上である。 In the first embodiment, the surface heat insulating structure Z has a total light reflectance (TSR%) of 40% or less and an infrared cut rate (IR-cut%) of 20% or more.

［第二実施形態］
図３に示すように、本発明の第二実施形態は、表面断熱構造Ｚを提供し、また、本実施形態に係る表面断熱構造Ｚは、第一実施形態に係る表面断熱構造Ｚと類似しているが、両者の相違点について、第二実施形態の表面断熱構造Ｚはホスト層１の一つの表面に設置された白色反射層２をさらに含むことにある。 [Second embodiment]
As shown in FIG. 3, the second embodiment of the present invention provides a surface insulation structure Z, and the surface insulation structure Z according to this embodiment is similar to the surface insulation structure Z according to the first embodiment. However, the difference between the two is that the surface heat insulating structure Z of the second embodiment further includes a white reflective layer 2 provided on one surface of the host layer 1 .

使用するときに、白色反射層２は、ホスト層１の被照面の反対側に設置する。それによって、一部の光線が金属錯体に吸収された後に、他の部分の光線は、ホスト層１を透過した後に、白色反射層２で反射されることにより、蓄熱を回避することができる。 In use, the white reflective layer 2 is placed on the opposite side of the host layer 1 from the illuminated surface. As a result, after part of the light is absorbed by the metal complex, the other part of the light is reflected by the white reflective layer 2 after passing through the host layer 1, thereby avoiding heat accumulation.

ホスト層１は、ポリ塩化ビニル樹脂組成物で形成される。第二実施形態におけるポリ塩化ビニル樹脂組成物は、第一実施形態におけるポリ塩化ビニル樹脂組成物と類似し、即ち、ポリ塩化ビニルと金属錯体とを含有し、前記多孔質材料及び／または前記熱伝導性材料をさらに含んでもよいので、ここでその説明を省略する。 The host layer 1 is made of a polyvinyl chloride resin composition. The polyvinyl chloride resin composition in the second embodiment is similar to the polyvinyl chloride resin composition in the first embodiment, that is, it contains polyvinyl chloride and a metal complex, and the porous material and/or the heat Since it may further include a conductive material, its description is omitted here.

白色反射層２は、反射塗料をホスト層１に塗布することで形成される。反射塗料は、二酸化チタン、硫酸バリウム、炭酸カルシウム、酸化マグネシウム、硫化亜鉛、フッ化カルシウム、フッ化リチウム、フッ化ナトリウム、フッ化カリウム、リトポン、炭酸マグネシウム、チタン酸バリウム、鉄酸バリウム、又はそれらの組み合わせを含む。 The white reflective layer 2 is formed by applying a reflective paint to the host layer 1 . Reflective paints are titanium dioxide, barium sulfate, calcium carbonate, magnesium oxide, zinc sulfide, calcium fluoride, lithium fluoride, sodium fluoride, potassium fluoride, lithopone, magnesium carbonate, barium titanate, barium ferrate, or including combinations of

ホスト層１は、暗色の外観を有することから、可視光の反射効果が制限される。よって、第二実施形態において、ホスト層１の被照面の反対側に白色反射層２に設置することにより、熱エネルギーの反射効果をさらに向上させることができる。 The host layer 1 has a dark appearance, which limits the reflective effect of visible light. Therefore, in the second embodiment, by placing the white reflective layer 2 on the side opposite to the illuminated surface of the host layer 1, the effect of reflecting thermal energy can be further improved.

注目すべきことは、表面断熱構造Ｚが白色反射層２をさらに含むと、表面断熱構造Ｚの赤外線カット率は大幅に向上する。第二実施形態において、表面断熱構造Ｚの全光線反射率（ＴＳＲ％）は、４０％以下であり、且つ、表面断熱構造Ｚの赤外線カット率（ＩＲ－ｃｕｔ％）は２０％以上である。 It should be noted that, when the surface heat insulating structure Z further includes the white reflective layer 2, the infrared cut rate of the surface heat insulating structure Z is greatly improved. In the second embodiment, the surface heat insulating structure Z has a total light reflectance (TSR%) of 40% or less and an infrared cut rate (IR-cut%) of 20% or more.

［第三実施形態］
図４に示すように、本発明の第三実施形態は、ホスト層１を備える表面断熱構造Ｚを提供し、ホスト層１は、積層したゴム層１１及び冷却層１２を含む。本実施形態において、ゴム層１１の厚さは、０．３～１μｍであり、冷却層１２の厚さは、０．３～１．５μｍである。好ましくは、冷却層１２の厚さは、ゴム層１１の厚さの０．３～５倍であり、さらに好ましくは、冷却層１２の厚さは、ゴム層１１の厚さの０．５～２倍である。 [Third embodiment]
As shown in FIG. 4, the third embodiment of the present invention provides a surface insulation structure Z comprising a host layer 1, the host layer 1 comprising a laminated rubber layer 11 and a cooling layer 12. As shown in FIG. In this embodiment, the thickness of the rubber layer 11 is 0.3-1 μm, and the thickness of the cooling layer 12 is 0.3-1.5 μm. Preferably, the thickness of the cooling layer 12 is 0.3 to 5 times the thickness of the rubber layer 11, and more preferably, the thickness of the cooling layer 12 is 0.5 to 0.5 times the thickness of the rubber layer 11. Twice.

ゴム層１１は、ポリ塩化ビニルと金属錯体とを含有する第一ポリ塩化ビニル樹脂組成物で形成され、第一ポリ塩化ビニル樹脂組成物の総重量を１００重量％として、ポリ塩化ビニルの含有量は、６０～９０重量％であり、金属錯体の含有量は、３～２０重量％であり、また、金属錯体としては、前述と同様である。よって、ゴム層１１は、暗色や黒色であると共に、一部の赤外線を吸収することができる。 The rubber layer 11 is formed of a first polyvinyl chloride resin composition containing polyvinyl chloride and a metal complex. is 60 to 90% by weight, the content of the metal complex is 3 to 20% by weight, and the metal complex is the same as described above. Therefore, the rubber layer 11 is dark or black and can absorb some infrared rays.

一つの好ましい実施形態において、ゴム層１１を形成した第一ポリ塩化ビニル樹脂組成物は発泡材料であり、ゴム層１１は、発泡ゴム層であってもよい。 In one preferred embodiment, the first polyvinyl chloride resin composition forming the rubber layer 11 is a foam material, and the rubber layer 11 may be a foam rubber layer.

他の実施形態において、第一ポリ塩化ビニル樹脂組成物は、前記多孔質材料及び／または熱伝導性材料をさらに含むことにより、ゴム層１１にも断熱効果を付与することができる。具体的に、第一ポリ塩化ビニル樹脂組成物の総重量を１００重量％として、多孔質材料の含有量は、１～１０重量％であり、熱伝導性材料の含有量は、１～６０重量％であり、ゴム層１１の密度は、０．５～１．２ｇ／ｃｍ３である。 In another embodiment, the first polyvinyl chloride resin composition further contains the porous material and/or the thermally conductive material, so that the rubber layer 11 can also have a heat insulating effect. Specifically, the total weight of the first polyvinyl chloride resin composition is 100% by weight, the content of the porous material is 1 to 10% by weight, and the content of the thermally conductive material is 1 to 60% by weight. %, and the density of the rubber layer 11 is 0.5 to 1.2 g/cm 3 .

冷却層１２は、ポリ塩化ビニルと多孔質材料及び／または熱伝導性材料とを含有する第二ポリ塩化ビニル樹脂組成物で形成される。第二ポリ塩化ビニル樹脂組成物の総重量を１００重量％として、ポリ塩化ビニルの含有量は、６０～９０重量％であり、多孔質材料の含有量は、１～１０重量％であり、熱伝導性材料の含有量は、１～６０重量％であり、多孔質材料及び熱伝導性材料としては、前述と同様であるので、ここでその説明を省略する。 The cooling layer 12 is formed of a second polyvinyl chloride resin composition containing polyvinyl chloride and a porous material and/or a thermally conductive material. Taking the total weight of the second polyvinyl chloride resin composition as 100% by weight, the content of polyvinyl chloride is 60 to 90% by weight, the content of the porous material is 1 to 10% by weight, and the heat is added. The content of the conductive material is 1 to 60% by weight, and the porous material and the thermally conductive material are the same as described above, so description thereof will be omitted here.

多孔質材料の添加で冷却層１２においてより多くのガスを含むことで、冷却層１２の熱伝導率を低減させることにより、冷却層１２に断熱効果を付与することができる。また、冷却層１２におけるガスは、熱対流を促進させ、熱エネルギーを速やかに外部へ伝送することにより、冷却の効果を果たせる。熱伝導性材料の添加により、冷却層１２に良好な熱伝導性効果を付与することができる。 By adding a porous material to the cooling layer 12 so that the cooling layer 12 contains more gas, the thermal conductivity of the cooling layer 12 is reduced, thereby imparting an insulating effect to the cooling layer 12 . In addition, the gas in the cooling layer 12 promotes heat convection and rapidly transfers thermal energy to the outside, thereby achieving a cooling effect. The addition of thermally conductive material can impart a good thermally conductive effect to the cooling layer 12 .

冷却層１２を形成した第二ポリ塩化ビニル樹脂組成物は、発泡材料であってもよく、冷却層１２は発泡冷却層であることによって、冷却層１２におけるガス含有量を増加させることができる。具体的に、冷却層１２の密度は、０．４～０．８ｇ／ｃｍ３であると共に、冷却層１２の密度は、ゴム層１１の密度より小さい。 The second polyvinyl chloride resin composition forming the cooling layer 12 may be a foam material, and the cooling layer 12 is a foam cooling layer, so that the gas content in the cooling layer 12 can be increased. Specifically, the density of the cooling layer 12 is 0.4 to 0.8 g/cm 3 and the density of the cooling layer 12 is lower than the density of the rubber layer 11 .

冷却層１２をゴム層１１に設置する方法として、以下の方法が挙げられるが、これらに制限されるものではない。例えば、第一ポリ塩化ビニル樹脂組成物及び第二ポリ塩化ビニル樹脂組成物を共射出すること、冷却層１２またはゴム層１１のいずれかを先に形成して、塗布で冷却層１２やゴム層１１のもう一つの層を形成すること、先に冷却層１２及びゴム層１１をそれぞれに形成して、ホットプレスで冷却層１２をゴム層１１に積層すること、若しくは、先に冷却層１２及びゴム層１１をそれぞれに形成して、冷却層１２とゴム層１１との間に接着層を設置することが挙げられる。 Methods for installing the cooling layer 12 on the rubber layer 11 include, but are not limited to, the following methods. For example, co-injecting the first polyvinyl chloride resin composition and the second polyvinyl chloride resin composition, forming either the cooling layer 12 or the rubber layer 11 first, and then coating the cooling layer 12 or the rubber layer forming another layer of 11, first forming the cooling layer 12 and the rubber layer 11 respectively and laminating the cooling layer 12 on the rubber layer 11 by hot pressing, or first forming the cooling layer 12 and the rubber layer 11; For example, the rubber layer 11 is formed separately and an adhesive layer is provided between the cooling layer 12 and the rubber layer 11 .

第三実施形態において、表面断熱構造Ｚの全光線反射率（ＴＳＲ％）は、４０％以下であり、且つ、表面断熱構造Ｚの赤外線カット率（ＩＲ－ｃｕｔ％）は２０％以上である。 In the third embodiment, the total light reflectance (TSR%) of the surface heat insulating structure Z is 40% or less, and the infrared cut rate (IR-cut%) of the surface heat insulating structure Z is 20% or more.

［第四実施形態］
図５に示すように、本発明の第四実施形態は、表面断熱構造Ｚを提供し、また、本実施形態に係る表面断熱構造Ｚは、第三実施形態に係る表面断熱構造Ｚと類似しているが、両者の相違点について、第四実施形態の表面断熱構造Ｚはゴム層１１と冷却層１２との間に設置された白色反射層２をさらに含むことにある。 [Fourth embodiment]
As shown in FIG. 5, the fourth embodiment of the present invention provides a surface insulation structure Z, and the surface insulation structure Z according to this embodiment is similar to the surface insulation structure Z according to the third embodiment. However, the difference between the two is that the surface heat insulating structure Z of the fourth embodiment further includes a white reflective layer 2 provided between the rubber layer 11 and the cooling layer 12 .

ゴム層１１は、第一ポリ塩化ビニル樹脂組成物で形成され、第四実施形態における第一ポリ塩化ビニル樹脂組成物は、第三実施形態における第一ポリ塩化ビニル樹脂組成物と類似している。よって、ゴム層１１は一部の赤外線を吸収することができると共に、暗色や黒色である。 The rubber layer 11 is formed of a first polyvinyl chloride resin composition, and the first polyvinyl chloride resin composition in the fourth embodiment is similar to the first polyvinyl chloride resin composition in the third embodiment. . Therefore, the rubber layer 11 can absorb some infrared rays and is dark or black.

冷却層１２は、第二ポリ塩化ビニル樹脂組成物で形成され、第四実施形態における第二ポリ塩化ビニル樹脂組成物は、第三実施形態における第二ポリ塩化ビニル樹脂組成物と類似している。よって、冷却層１２は、断熱効果を果たせる。 The cooling layer 12 is formed of a second polyvinyl chloride resin composition, and the second polyvinyl chloride resin composition in the fourth embodiment is similar to the second polyvinyl chloride resin composition in the third embodiment. . Therefore, the cooling layer 12 can achieve a heat insulating effect.

第四実施形態において、表面断熱構造Ｚは、３つの断熱構造を有し、ゴム層１１における金属錯体は一部の赤外線を吸収することができ、ゴム層１１及び／または冷却層１２における多孔質材料及び／または熱伝導性材料は、熱伝導を遮ることができ、白色反射層２は、可視光及び赤外線を反射することができる。このように、長時間の日差しの下であっても、表面断熱構造Ｚの表面温度は、相対的に低い温度（５５℃未満）を維持することができる。 In the fourth embodiment, the surface insulation structure Z has three insulation structures, the metal complex in the rubber layer 11 can absorb some infrared rays, and the porous Materials and/or thermally conductive materials can block heat conduction, and the white reflective layer 2 can reflect visible and infrared light. Thus, the surface temperature of the surface heat insulating structure Z can be maintained at a relatively low temperature (less than 55° C.) even under long hours of sunlight.

注目すべきことは、表面断熱構造Ｚは黒色ゴム層１１及び白色反射層２を備えると、その赤外線カット率は大幅に向上する。第四実施形態において、表面断熱構造Ｚの全光線反射率（ＴＳＲ％）は、４０％以下であり、且つ、表面断熱構造Ｚの赤外線カット率（ＩＲ－ｃｕｔ％）は２０％以上である。 It should be noted that when the surface heat insulating structure Z includes the black rubber layer 11 and the white reflective layer 2, its infrared cut rate is greatly improved. In the fourth embodiment, the surface heat insulating structure Z has a total light reflectance (TSR%) of 40% or less and an infrared cut rate (IR-cut%) of 20% or more.

［実施形態による有利な効果］
本発明の有利な効果として、本発明に係る自動車・オートバイのシートに用いる表面断熱構造Ｚは、「前記ポリ塩化ビニル樹脂組成物は、ポリ塩化ビニルと金属錯体とを含有する」こと、及び「前記ポリ塩化ビニル樹脂組成物の総重量を１００重量％として、前記金属錯体の含有量は、３～２０重量％である」といった技術特徴により、表面断熱構造Ｚの断熱効果を向上させることができる。 [Advantageous effects of the embodiment]
As an advantageous effect of the present invention, the surface heat insulating structure Z used for the seat of an automobile/motorcycle according to the present invention is characterized in that "the polyvinyl chloride resin composition contains polyvinyl chloride and a metal complex" and " Assuming that the total weight of the polyvinyl chloride resin composition is 100% by weight, the content of the metal complex is 3 to 20% by weight." .

更に言うと、本発明に係る自動車・オートバイのシートに用いる表面断熱構造Ｚは、「ポリ塩化ビニル樹脂組成物は、多孔質材料を含む」といった技術特徴により、表面断熱構造Ｚの断熱効果を向上させることができる。 Furthermore, the surface heat insulation structure Z used for the seats of automobiles and motorcycles according to the present invention improves the heat insulation effect of the surface heat insulation structure Z due to the technical feature that "the polyvinyl chloride resin composition contains a porous material." can be made

更に言うと、本発明に係る自動車・オートバイのシートに用いる表面断熱構造Ｚは、「表面断熱構造Ｚは、白色反射層２を含む」といった技術特徴により、表面断熱構造Ｚの赤外線反射効果を向上させることができる。 Furthermore, the surface heat insulation structure Z used for the seats of automobiles and motorcycles according to the present invention improves the infrared reflection effect of the surface heat insulation structure Z due to the technical feature that "the surface heat insulation structure Z includes a white reflective layer 2". can be made

以上に開示された内容は、ただ本発明の好ましい実行可能な実施態様であり、本発明の請求の範囲はこれに制限されない。そのため、本発明の明細書及び図面内容を利用して成される全ての等価な技術変更は、いずれも本発明の請求の範囲に含まれる。 What has been disclosed above is merely a preferred and practicable embodiment of the present invention, and the scope of the claims of the present invention is not limited thereto. Therefore, all equivalent technical modifications made using the contents of the specification and drawings of the present invention are included in the scope of the claims of the present invention.

Ｚ ・・・表面断熱構造
１ ・・・ホスト層
２ ・・・白色反射層
１１ ・・・ゴム層
１２ ・・・冷却層 Z: surface heat insulating structure 1: host layer 2: white reflective layer 11: rubber layer 12: cooling layer

Claims (11)

ポリ塩化ビニルと金属錯体とを含有するポリ塩化ビニル樹脂組成物で形成されたホスト層を備え、前記ポリ塩化ビニル樹脂組成物の総重量を１００重量％として、前記金属錯体の含有量は、３～２０重量％である、ことを特徴とする自動車・オートバイのシートに用いる表面断熱構造。 The host layer is formed of a polyvinyl chloride resin composition containing polyvinyl chloride and a metal complex, and the total weight of the polyvinyl chloride resin composition is 100% by weight, and the content of the metal complex is 3. A surface insulation structure used for a seat of an automobile/motorcycle, characterized in that it is ∼20% by weight. 前記金属錯体の中心原子は、マンガン、鉄、コバルト、またはバナジウムである、請求項１に記載の自動車・オートバイのシートに用いる表面断熱構造。 The surface insulation structure for automobile/motorcycle seat according to claim 1, wherein the central atom of the metal complex is manganese, iron, cobalt or vanadium. 前記ポリ塩化ビニル樹脂組成物は、多孔質材料をさらに含み、前記ポリ塩化ビニル樹脂組成物の総重量を１００重量％として、前記多孔質材料の含有量は、１～１０重量％である、請求項１に記載の自動車・オートバイのシートに用いる表面断熱構造。 The polyvinyl chloride resin composition further includes a porous material, and the content of the porous material is 1 to 10% by weight based on the total weight of the polyvinyl chloride resin composition being 100% by weight. Item 1. A surface heat insulating structure used for the seat of an automobile or motorcycle according to item 1. 前記多孔質材料は、エアロゲル、中空発泡粒子、珪藻石、及びそれらの組み合わせからなる群から選択される、請求項３に記載の自動車・オートバイのシートに用いる表面断熱構造。 4. The surface insulation structure for automobile/motorcycle seat according to claim 3, wherein said porous material is selected from the group consisting of airgel, hollow foamed particles, diatomite, and combinations thereof. 前記ホスト層の一つの表面に設置された白色反射層をさらに含み、前記白色反射層は、二酸化チタン、硫酸バリウム、炭酸カルシウム、酸化マグネシウム、硫化亜鉛、フッ化カルシウム、フッ化リチウム、フッ化ナトリウム、フッ化カリウム、リトポン、炭酸マグネシウム、チタン酸バリウム、鉄酸バリウム、またはそれらの組み合わせを含む、請求項１に記載の自動車・オートバイのシートに用いる表面断熱構造。 Further comprising a white reflective layer disposed on one surface of the host layer, wherein the white reflective layer comprises titanium dioxide, barium sulfate, calcium carbonate, magnesium oxide, zinc sulfide, calcium fluoride, lithium fluoride, sodium fluoride. , potassium fluoride, lithopone, magnesium carbonate, barium titanate, barium ferrate, or a combination thereof. 前記ポリ塩化ビニル樹脂組成物は、第一ポリ塩化ビニル樹脂組成物及び第二ポリ塩化ビニル樹脂組成物を含み、
前記ホスト層は、
ポリ塩化ビニルと前記金属錯体とを含有する前記第一ポリ塩化ビニル樹脂組成物で形成されたゴム層、及び
前記ゴム層に設置されており、ポリ塩化ビニルと多孔質材料とを含有する前記第二ポリ塩化ビニル樹脂組成物で形成された冷却層、を含む、
請求項１に記載の自動車・オートバイのシートに用いる表面断熱構造。 The polyvinyl chloride resin composition comprises a first polyvinyl chloride resin composition and a second polyvinyl chloride resin composition,
The host layer is
a rubber layer formed of the first polyvinyl chloride resin composition containing polyvinyl chloride and the metal complex; and the first rubber layer provided on the rubber layer and containing polyvinyl chloride and the porous material. a cooling layer formed of a dipolyvinyl chloride resin composition;
A surface heat insulating structure used for a seat of an automobile/motorcycle according to claim 1. 前記多孔質材料は、エアロゲル、中空発泡粒子、珪藻石、及びそれらの組み合わせからなる群から選択される、請求項６に記載の自動車・オートバイのシートに用いる表面断熱構造。 7. The surface insulation structure for automobile/motorcycle seat according to claim 6, wherein said porous material is selected from the group consisting of airgel, hollow foamed particles, diatomite, and combinations thereof. 前記ポリ塩化ビニル樹脂組成物は、第一ポリ塩化ビニル樹脂組成物及び第二ポリ塩化ビニル樹脂組成物を含み、
前記ホスト層は、
ポリ塩化ビニルと前記金属錯体とを含有する前記第一ポリ塩化ビニル樹脂組成物で形成されたゴム層、及び
前記ゴム層に設置されており、ポリ塩化ビニルと熱伝導材料とを含有する前記第二ポリ塩化ビニル樹脂組成物で形成された冷却層、を含む、
請求項１に記載の自動車・オートバイのシートに用いる表面断熱構造。 The polyvinyl chloride resin composition comprises a first polyvinyl chloride resin composition and a second polyvinyl chloride resin composition,
The host layer is
a rubber layer formed of the first polyvinyl chloride resin composition containing polyvinyl chloride and the metal complex; a cooling layer formed of a dipolyvinyl chloride resin composition;
A surface heat insulating structure used for a seat of an automobile/motorcycle according to claim 1. 前記熱伝導材料は、グラファイト、酸化アルミニウム、酸化マグネシウム、酸化亜鉛、窒化アルミニウム、窒化ホウ素、炭化ケイ素、及びそれらの組み合わせからなる群から選択される、請求項８に記載の自動車・オートバイのシートに用いる表面断熱構造。 9. The automobile/motorcycle seat of claim 8, wherein the thermally conductive material is selected from the group consisting of graphite, aluminum oxide, magnesium oxide, zinc oxide, aluminum nitride, boron nitride, silicon carbide, and combinations thereof. Surface insulation structure to be used. 前記ゴム層と前記冷却層との間に設置された白色反射層をさらに含み、前記白色反射層は、二酸化チタン、硫酸バリウム、炭酸カルシウム、酸化マグネシウム、硫化亜鉛、フッ化カルシウム、フッ化リチウム、フッ化ナトリウム、フッ化カリウム、リトポン、炭酸マグネシウム、チタン酸バリウム、鉄酸バリウム、またはそれらの組み合わせを含む、請求項６～９のいずれか一項に記載の自動車・オートバイのシートに用いる表面断熱構造。 Further comprising a white reflective layer disposed between the rubber layer and the cooling layer, wherein the white reflective layer comprises titanium dioxide, barium sulfate, calcium carbonate, magnesium oxide, zinc sulfide, calcium fluoride, lithium fluoride, Surface insulation for automotive and motorcycle seats according to any one of claims 6 to 9, comprising sodium fluoride, potassium fluoride, lithopone, magnesium carbonate, barium titanate, barium ferrate, or combinations thereof. structure. 前記冷却層の厚さは、前記ゴム層の厚さの０．５～２倍である、請求項６～９のいずれか一項に記載の自動車・オートバイのシートに用いる表面断熱構造。 10. The surface insulation structure for use in a seat of an automobile/motorcycle according to any one of claims 6 to 9, wherein the thickness of the cooling layer is 0.5 to 2 times the thickness of the rubber layer.
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